Synthesis, crystal structure and two-photon property studies on a series of complexes derived from a novel Schiff base ligand

A new Schiff base ligand derived from S-benzyldithiocarbazate and 4-[N-hydroxy ethyl-N-(methyl)amino]benzaldehyde (HL, where H is a dissociable proton) and its NiII, CuII, ZnII and PdII complexes were prepared and fully characterized. The structures of HL and Ni(L)2 were determined by X-ray diffraction analysis, which revealed that the geometry of the NiII ion is square-planar with two equivalent Ni=N and Ni=S bonds, and that the two neighboring molecules in two layers have weak contact. The electronic spectra and solution fluorescence of the ligand and the complexes were studied, and the quantum yields of single-photon fluorescence for the compounds were determined. The compounds possess two-photon absorption (t.p.a.) character and the t.p.a. coefficient β and t.p.a. cross-section σ were determined by the Z-scan technique. Especially, the Zn(L)2complex and the HL ligand exhibit intensive two-photon fluorescence (t.p.f.) at 800 nm laser pulses in the femtosecond regime.

Tian, YupengDepartment of Chemistry, Anhui University, China (author)
Zhang, XuanjunDepartment of Chemistry, Anhui University, China(Swepub:liu)xuazh91 (author)
Wu, JieyingDepartment of Chemistry, Anhui University, China (author)
Zhang, ShengyiDepartment of Chemistry, Anhui University, China (author)
Wang, DongState Key Laboratory of Crystal Materials, Shandong University, China (author)
Jiang, MinhuaState Key Laboratory of Crystal Materials, Shandong University, China (author)
Chantrapromm, SuchadaCrystallography Unit, School of Physics, Universiti Sain Malaysia (author)
Fun, Hoong-KunCrystallography Unit, School of Physics, Universiti Sain Malaysia (author)
Department of Chemistry, Anhui University, ChinaState Key Laboratory of Crystal Materials, Shandong University, China (creator_code:org_t)

In:Transition metal chemistry (Weinheim): Kluwer Academic Publishers29:6, s. 596-6020340-42851572-901X

By the author/editor: Zhang, Mingliang; Tian, Yupeng; Zhang, Xuanjun; Wu, Jieying; Zhang, Shengyi; Wang, Dong; show more...; Jiang, Minhua; Chantrapromm, Su ...; Fun, Hoong-Kun; show less...

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